Portola Hills Weather Forecast

    • 54
    • 74

    Mostly Sunny

    • 53
    • 72

    Partly Sunny

    • 54
    • 67

    Patchy Fog

    • 53
    • 70

    Mostly Sunny

    • 54
    • 71

    Mostly Sunny

    • 56
    • 75

    Mostly Sunny

Today 18 May Orange County Inland

Areas of low Clouds and fog in the morning then mostly sunny. Highs around 71 towards the coast to 74 to 79 farther inland. Light Winds.

Tonight 18 May Orange County Inland

Mostly clear in the evening then Areas of low Clouds and fog. Lows 53 to 58. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portola Hills Temperature Statistics

May Temperature

Corona Airport (13 miles)

  • Lowest 11 May, 2022

    39 °F

  • Average May

    67 °F

  • Highest 14 May, 2022

    95 °F

Climate (2010–Present)

Corona Airport (13 miles)

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  • Average Low 2010–Present

    52 °F

  • Average 2010–Present

    64.9 °F

  • Average High 2010–Present

    78.1 °F
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